/*
fuzzylite (R), a fuzzy logic control library in C++.

Copyright (C) 2010-2024 FuzzyLite Limited. All rights reserved.
Author: Juan Rada-Vilela, PhD <jcrada@fuzzylite.com>.

This file is part of fuzzylite.

fuzzylite is free software: you can redistribute it and/or modify it under
the terms of the FuzzyLite License included with the software.

You should have received a copy of the FuzzyLite License along with
fuzzylite. If not, see <https://github.com/fuzzylite/fuzzylite/>.

fuzzylite is a registered trademark of FuzzyLite Limited.
*/

#ifndef FL_DEFUZZIFIER_H
#define FL_DEFUZZIFIER_H

#include <string>

#include "fuzzylite/fuzzylite.h"

namespace fuzzylite {
    class Term;

    /**
      The Defuzzifier class is the abstract class for defuzzifiers.

      @author Juan Rada-Vilela, Ph.D.
      @see IntegralDefuzzifier
      @see WeightedDefuzzifier
      @since 4.0
     */
    class FL_API Defuzzifier {
      public:
        Defuzzifier() {}

        virtual ~Defuzzifier() {}
        FL_DEFAULT_COPY_AND_MOVE(Defuzzifier)

        /**
          Returns the name of the class of the defuzzifier
          @return the name of the class of the defuzzifier
         */
        virtual std::string className() const = 0;
        /**
          Creates a clone of the defuzzifier
          @return a clone of the defuzzifier
         */
        virtual Defuzzifier* clone() const = 0;

        /**
          Defuzzifies the given fuzzy term utilizing the range `[minimum,maximum]`
          @param term is the term to defuzzify, typically an Aggregated term
          @param minimum is the minimum value of the range
          @param maximum is the maximum value of the range
          @return the defuzzified value of the given fuzzy term
         */
        virtual scalar defuzzify(const Term* term, scalar minimum, scalar maximum) const = 0;
    };
}

#endif /* FL_DEFUZZIFIER_H */
